It is really disappointed that we still waiting for a largely used functionality as we have LV 64bits since 2009. I am not expert in LV programming but have some knowledge in .NET where I would like to give my thoughts and suggestions where NI guys might solve using .NET invokes (sure this will fulfill only for MS SQL Server). I made a trial, took my C# calls and translated to .NET blocks and it works.
Of course there is a quite of work to be done until having top level VIs. Now I have a great dilemma in downgrading my project to 32bit for while and pray to not have performance issues for my vision application.
Duplicate of http://forums.ni.com/t5/LabVIEW-Idea-Exchange/64-bit-Database-Toolkit/idi-p/2170088